Balloon in car riddle


There is a car with a flat roof, on a plain level road. There is a helium balloon in the car, barely scraping the roof – any slight force will move it. You start the car and accelerate forward very fast. Does the balloon move with respect to the car? If so, how ? (No any trick and no any air from window)

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  • 1 Answer(s)

    The balloon will move to the front of the car.
    Because of the inertia the heavier air in the car will move to the back pushing the balloon to the front.

    CugelTheWise Expert Answered on 20th September 2018.
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